Galva Illinois Climate Data

Monthly Average Climate Data for Galva Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.4 °F29.9 °F1.79 in.
February16.7 °F34.5 °F1.91 in.
March27.1 °F47.5 °F2.45 in.
April37.8 °F60.7 °F3.98 in.
May50.0 °F71.9 °F4.9 in.
June59.8 °F80.5 °F4.84 in.
July63.0 °F83.5 °F4.02 in.
August60.8 °F81.9 °F3.68 in.
September52.3 °F76.1 °F3.9 in.
October40.9 °F63.5 °F2.86 in.
November29.4 °F48.3 °F2.51 in.
December19.3 °F35.4 °F2.06 in.
Annual39.2 °F59.5 °F38.9 in.

Climate Data for Galva Illinois

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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